'Grubbies.'

Survey reveals Britain’s dirty habits. Not a great survey, but Hygiene and sterilising experts Milton have decided to air Britain's dirty linen in public ...

36% of the UK population - that is 21 million people – said that they do not take a bath or shower every day, while 6% - 3.6 million people – bathe once a week and, rather shockingly, 1% - or 600,000 people – said they take a bath or shower just once a month.
The same number of people also said they only change their underwear on a monthly basis.

Now 1% isn't a great proportion of the population, but 600,000 'great unwashed' is more than the entire population within the Canterbury region.

Just another thing to be taken into account when working out those prenuptials.